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Category | Type | Steel grade | Standard | Country |
---|---|---|---|---|
Grades | Special Alloy | GH4698 | GBT | China |
Chemical composition % of the ladle analysis of grade GH4698
C(%) | Cr(%) | Ni(%) | Mo(%) | B(%) | Nb(%) | Al(%) | Ti(%) | Other(%) |
---|---|---|---|---|---|---|---|---|
Max 0.08 | 13.0-16.0 | Balance | 2.8-3.2 | Max 0.005 | 1.8-2.2 | 1.3-1.7 | 2.35-2.75 | Ce:Max 0.005 |
Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
---|---|---|---|---|---|---|
928 (≥) | 138 (≥) | 42 | 43 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 243 |
Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
---|---|---|---|---|---|---|---|
893 (≥) | 155 (≥) | 14 | 41 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
349 | 846 | 395 |
Product type | Products | Dimension | Processes | Deliver Status |
---|---|---|---|---|
Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
Grade | Standard | Country | Application |
---|---|---|---|
GH4698 | GBT | China | Nickel-base superalloy |